---
title: "CVE-2019-13104\n    | Ubuntu"
description: Ubuntu is an open source software operating system that runs from the
  desktop, to the cloud, to all your internet connected things.
url: https://ubuntu.com/security/CVE-2019-13104?format=md
keywords: index, follow
---

# CVE-2019-13104

Publication date 6 August 2019

Last updated 25 August 2025

---

Ubuntu priority

**Low**

[Why this priority?](https://ubuntu.com/security/cves/about#priority )

## Cvss 3 Severity Score

**7.8 · High**

[Score breakdown](https://ubuntu.com/security/CVE-2019-13104?format=md#impact-score)

Toggle side navigation

## Description

In Das U-Boot versions 2016.11-rc1 through 2019.07-rc4, an underflow can
cause memcpy() to overwrite a very large amount of data (including the
whole stack) while reading a crafted ext4 filesystem.

## Status

Show unmaintained releases

| Package | Ubuntu Release | Status |
| --- | --- | --- |
| u-boot | 22.04 LTS jammy | Not affected |
| 21.10 impish | Not affected |
| 21.04 hirsute | Not affected |
| 20.10 groovy | Not affected |
| 20.04 LTS focal | Fixed 2021.01+dfsg-3ubuntu0~20.04.3 |
| 19.10 eoan | Ignored end of life |
| 19.04 disco | Ignored end of life |
| 18.04 LTS bionic | Fixed 2020.10+dfsg-1ubuntu0~18.04.2 |
| 16.04 LTS xenial | Not affected |
| 14.04 LTS trusty | Not in release |

---

* [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)
* [What do statuses mean?](https://ubuntu.com/security/cves/about#statuses)
* [Patch details](https://ubuntu.com/security/CVE-2019-13104?format=md#patch-details)

### Patch details

For informational purposes only. We recommend not to cherry-pick updates. [How can I get the fixes?](https://ubuntu.com/security/cves/about#security)

| Package | Patch details |
| --- | --- |
| u-boot | * Upstream:   [878269d](https://gitlab.denx.de/u-boot/u-boot/commit/878269dbe74229005dd7f27aca66c554e31dad8e) |

## Severity score breakdown

CVSS version:
CVSS v3.0

**Base score**

7.8 · High

* Base metrics

  | Parameter | Value |
  | --- | --- |
  | Attack vector | Local |
  | Attack complexity | Low |
  | Privileges required | None |
  | User interaction | Required |
  | Scope | Unchanged |
  | Confidentiality impact | High |
  | Integrity impact | High |
  | Availability impact | High |
* Scores

  | Parameter | Value |
  | --- | --- |
  | Base score | 7.8 · High |
  | Exploitability score | - |
  | Impact score | - |

**Vector:** CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

## References

* [MITRE](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-13104)
* [NVD](https://nvd.nist.gov/vuln/detail/CVE-2019-13104)
* [Launchpad](https://launchpad.net/bugs/cve/CVE-2019-13104)
* [Debian](https://security-tracker.debian.org/tracker/CVE-2019-13104)

### Other references

* <https://lists.denx.de/pipermail/u-boot/2019-July/375514.html>
* <https://www.cve.org/CVERecord?id=CVE-2019-13104>